1. First thing: Please be Ready with iclickers out, everything else put away. (Candy/Toothpicks can stay out)

2. For Credit iClicker Quiz Open Note: You may not use: Phones, books, ipads, computers or your neighbor Given the structure of OF 2 answer the following questions: 1) What is the coordination number of O? A) 2B) 3C) 4D) 5E) 6 2) What is the steric number of O? A) 2B) 3C) 4D) 5E) 6

3. Visit: https://checkin.ics.uci.edu/https://checkin.ics.uci.edu/ Log in and select Chem 1A. When prompted, type the word of the day: vsepr Ensure when asked if you will share your location you select “allow”. Visit: https://learningcatalytics.com/https://learningcatalytics.com/ Sign in MasteringChemistry account name When prompted, type session ID: NO LEARNING CATALYTICS Please turn off all downloads. You can usually pause them by clicking on them and clicking pause. Facebook and youtube are officially banned during class time (this is not me micromanaging, it’s a legit internet issue as told to me by OIT). Remember back 5 rows of even side are no seating zones Visit: https://checkin.ics.uci.edu/https://checkin.ics.uci.edu/ Word of the day: vsepr Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

4. SOME DEFINITIONS STERIC NUMBER: # BONDS+# ELECTRON PAIRS COORDINATION NUMBER: NUMBER OF BONDED ATOMS Steric #: 4 Coord. #:3 Steric #: 5 Coord. #:5 Steric #: 6 Coord. #:5 Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

5. SOME (MORE) DEFINITIONS ELECTRON GEOMETRY: GEOMETRY INCLUDING IF YOU “SAW” ELECTRON PAIRS MOLECULAR GEOMETRY: GEOMETRY WHERE YOU DON’T “SEE” ELECTRON PAIRS BOND ANGLE: ANGLE BETWEEN BONDS. EG:Tetrahedral MG: Trig. pyramidal EG:Octahedral MG: Square Pyramidal EG:Trig. bipyramidal MG: Trig. bipyramidal Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

6. PULL OUT YOUR WORKSHEET, CANDY AND TOOTHPICKS! Thanks to http://www.chemmybear.com/shapes.html for all animations on following slides! Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

7. STERIC NUMBER 2 Linear 180° Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

8. STERIC NUMBER 3 Examples: SO 3, BF 3, CO 3 2- Examples: SO 2, CCl 2 Trigonal Planar 120° Trigonal Planar Bent <120° Trigonal Planar Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

9. STERIC NUMBER 4 Examples: CH 4, SiH 4, PO 4 Examples: NH 3, PI 3 Examples: H 2 O, OF 2 Tetrahedral 109.5° Trigonal Pyramidal <109.5° Tetrahedral Bent <109.5° and <AX3E Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

10. STERIC NUMBER 5 Examples: PCl 5, SbF 5 Examples: TeCl 4, SF 4 Examples: ClF 3, SeO 3 2- Examples: I 3 -, XeF 2 Trig. Bipyramidal 90°, 120° Trig. Bipyramidal See-saw <90°, <120° <90° 180° T-shaped linear Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.

11. STERIC NUMBER 6 Examples: SF 6, Mo(CO) 6 Examples: IF 5, BrF 5 Examples: XeF 4, ClF 4 - Octahedral 90° Octahedral Square Pyramidal <90° 90° Square planar Octahedral Visit: https://checkin.ics.uci.edu/ : vseprhttps://checkin.ics.uci.edu/ Ensure when asked if you will share your location you select “allow”. LearningCatalytics: session ID: NONE TODAY.